Quality Management in Web Warehouses

Quality Management in Web Warehouses

Adriana Marotta (Universidad de la República, Uruguay), Laura González (Universidad de la República, Uruguay), Lorena Etcheverry (Universidad de la República, Uruguay), Bruno Rienzi (Universidad de la República, Uruguay), Raúl Ruggia (Universidad de la República, Uruguay), Flavia Serra (Universidad de la República, Uruguay) and Elena Martirena (Universidad de la República, Uruguay)
DOI: 10.4018/978-1-61350-038-5.ch001

Abstract

Web Warehouses (WW) are data warehouses that consolidate data from the Web. The process of building them presents several challenges, most of them related to the autonomy and dynamicity of Web sources. In this context, managing quality aspects becomes a fundamental issue since information about quality is needed to properly select Web sources to populate the WW. Additionally, measuring and propagating quality values to the WW might provide final users with valuable information to improve decision-making processes. In this chapter, we present a reference architecture for quality aware Web Warehouses, which specifies the main components to evaluate and manage quality aspects through all the life cycle of a WW and considers quality regarding data and services.
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Background

In this section, we present existing works regarding some of the topics addressed within this chapter and we describe how our work is positioned with respect to them. First, we analyze various works concerning data quality in DWs and Data Integration Systems. Then, we present existing knowledge on quality in WDSs; we survey works regarding quality in Web applications, Web Services and Mashups. Finally, we review works that propose WW platforms that deal with different implementation issues.

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